display spantree backbonefast 491
See Also
display spantree blockedports on page 492

display spantree

backbonefast

Indicates whether the STP backbone fast convergence feature is enabled

or disabled.

Syntax — display spantree backbonefast

Defaults — None.

Access — All.

History —Introduced in MSS Version 3.0.

Port-state STP state of the port:
Blocking — The port is not forwarding Layer 2
traffic but is listening to and forwarding STP
control traffic.
Disabled — The port is not forwarding any traffic,
including STP control traffic. The port might be
administratively disabled or the link might be
disconnected.
Forwarding — The port is forwarding Layer 2
traffic.
Learning — The port is learning the locations of
other WX switches in the spanning tree before
changing state to forwarding.
Listening — The port is comparing its own STP
information with information in STP control
packets received by the port to compute the
spanning tree and change state to blocking or
forwarding.
STP Off—STP is disabled on the port.
Cost STP cost of the port.
Prio STP priority of the port.
Portfast State of the uplink fast convergence feature:
Enabled
Disabled

Table 75 Output for display spantree (continued)

Field Description